Question

A person walks 30 m in first 10 seconds.35 m in next 10 seconds and 25 m in last 10 seconds.What is his average speed?

Answer 1

Distances travelled.

• 30m,35m,25m

Time taken=10s,10s,10s

We know

$\boxed{\sf Average\:speed=\dfrac{Total\:Distance}{Total\:Time}}$

$\\ \sf\longmapsto Average\:speed=\dfrac{30+35+25}{10+10+10}$

$\\ \sf\longmapsto Average\:speed=\dfrac{90}{30}$

$\\ \sf\longmapsto Average\:Speed=3m/s$